Not sure if the international community can help us. I believe that knowledge of Czech is needed to correctly fill in the TemplateData [but also the knowledge of how templatedata work]. However, I am happy that this helps to attract attention of Czech Wikipedians who know the tech side of the project.

I just added 'case' to the message; it was missing due to the fact that I made this error on en wiki and it propagated as everyone just copied that, whoops. We could probably put Šablona:Citace soudního rozhodnutí in there instead of monografie but needs a map first.

I see, this is definitely a bug in Zotero then and a bug report should be filled in against Zotero. I'm okay with this fix, but little bit unsure if it is okay when pure webpage (nonperiodical) is crawled.